摘要
声能是环境中普遍存在的一种能量形式,如何收集并应用这一能量成为当下研究热点。介绍了亥姆霍兹谐振腔、声晶体谐振腔、四分之一波长谐振腔以及其他非腔体结构声能收集系统的结构及其优化方案。实验结果表明,与亥姆霍兹谐振腔相比,使用同等尺寸的声晶体谐振腔能获得更高的能量收集效率,而四分之一波长谐振腔能以更小的体积收集同样的声能。另外,结构优化和耦合设计可以极大地提升能量收集效率。许多非腔体结构的设计也有着不错的应用前景。
Acoustic energy is ubiquitous as a form of energy in the environment.How to collect and apply acoustic energy has become a current research hot issue.The system structure and related optimization schemes of Helmholtz resonator,acoustic crystal resonator,quarter-wave resonator and other non-cavity structure acoustic energy harvester were introduced.The experimental results showed that higher energy harvesting efficiency could be achieved by the use of acoustic crystal resonators rather than Helmholtz resonators with the same size.Compared with the Helmholtz resonator,the advantage of a quarter-wave resonator was that it could collect the same sound energy in a smaller volume.The efficiency of energy harvesting had also been improved by the structural optimization and coupling design.In addition,many non-cavity structures had also a good application prospect.
作者
杨磊
薛至诚
何星月
谷新丰
王德波
YANG Lei;XUE Zhicheng;HE Xingyue;GU Xinfeng;WANG Debo(College of Electronic and Optical Engineering&College of Microelectronics,Nanjing University of Posts and Telecommunications,Nanjing210023,P.R.China)
出处
《微电子学》
CAS
北大核心
2020年第1期112-117,125,共7页
Microelectronics
基金
国家自然科学青年基金资助项目(61704086)
国家博士后基金资助项目(2017M621692)
江苏省博士后基金资助项目(1701131B)
江苏省研究生科研创新计划资助项目(SJKY19_0816,SJKY19_0267).
关键词
声能收集
亥姆霍兹谐振腔
声晶体
四分之一波长谐振腔
非腔体结构
acoustic energy collection
Helmholtz resonator
acoustic crystal
quarter-wave resonator
non-cavity structure
